Product official page:
http://robotdyn.com/~tN5Sf - International
http://robotdyn.ru/~tN5Sf - Russian
* For get a detail information of product, instruction, guide and software, Pls visit to official page of product.
The matrix LED use driver IC MAX7219/7221. He have a built in clock so they multiplex the LED's.These matrix LED you can connect up to eight 8x8's together (or a combination, such as four 1.2" 8x8's and four 7-segments, etc) on a single I2C bus.